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Finding the Fourth Proportional to 172,871, 259,350.26 and 48,212

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Solution

The fourth proportional to 172,871, 259,350.26 and 48,212 is: 72,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,871 : 259,350.26 = 48,212 : x
  2. Step 2: Convert to fraction form
    172,871/259,350.26 = 48,212/x
  3. Step 3: Cross multiply
    172,871x = 259,350.26 × 48,212
  4. Step 4: Simplify right side
    172,871x = 12,503,794,735.12
  5. Step 5: Solve for x
    x = 12,503,794,735.12/172,871
  6. Step 6: Final answer
    x = 72,330.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.